000 00292nam a2200109Ia 4500
008 230915s9999||||xx |||||||||||||| ||und||
041 _aeng
100 _aMassey, William S.
_93554
245 2 _aA Basic Course in Algebraic Topology
_cMassey, William S.
260 _bSpringer
_c1991
942 _cBK
999 _c20581
_d20581